Denver authorities gave Cynthia Roberson, 60, 24 hours to remove the snow from the sidewalk in front of her home or face a $150 fine. But what really galled the disabled woman is that she had already removed the snow from the sidewalk. Then the city sent snow plows that cleared the street but piled more snow on the sidewalk. "I can't keep paying people to fix what the city messes up," she said. A city planning official says the city will give people extra time if city crews piled snow on the sidewalks, but it's still up to residents to remove that snow.